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Lesson Plan
Curated OER

Polygonal Strings

For Teachers 6th
Sixth graders apply knowledge of how to calculate the area and perimeter of triangles. They determine why it is inappropriate to measure the area of land by its perimeter which is done in certain areas of New Guinea. They complete a...
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Lesson Plan
Curated OER

Quilt Patch Proof

For Teachers 6th - 10th
Students construct a convincing argument that the same amount of fabric is needed for each color of quilt being made in a specific design. They justify the relationship between vertical angles and the sum of the interior angles. Students

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